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Coffin Cut Lab Grown Diamond Bezel Engagement Ring
1 of 9
The Signora Promise
Hand-finished in SuratMade to order
Reports where statedExact scope shown
Insured deliverySigned & tracked
Secure checkoutShopify checkout
Standard-design returns30-day eligibility
Final inspectionChecked before dispatch
About This Ring
Cut · Bezel
Center
Cut
Carat
1 ct
CustomizableMetal
CustomizableSetting
Bezel
An independent IGI grading report is included when the selected individual lab-grown center or primary diamond is 0.50 ct or larger.
| Detail | In the photos | Customizable |
|---|---|---|
| Center diamond | Coffin · 10.5 × 6.5 mm · approx. 2.00 ct | 1–4.5 ct |
| Accent diamonds | None | None |
| Total diamond weight | approx. 2.00 ct · 1 stone | Varies with selected center |
| Stone type | Lab Grown Diamond | — |
| Setting | Bezel | Scales with center |
| Band | Plain polished shank with cathedral support | — |
| Finish · Occasion | High Polish · Engagement, Anniversary, Bridal | — |
At a glance
A coffin cut lab grown diamond bezel engagement ring from Signora Jewels.
The photographed design carries a 2.00 ct coffin cut measuring approximately 10.5 × 6.5 mm, enclosed by a full geometric bezel with no accent diamonds. Approx. 2.00 ct total.
Made to order in 11 metals: silver, 9K/14K/18K gold (yellow, white, rose) and platinum.
Each metal color is shown in the photos. Choose a 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct or 4.5 ct center and your preferred metal from the options on this page.
Signora Jewels follows the 10.5 × 6.5 mm coffin cut with a complete rim of metal rather than breaking its outline with prongs. At the photographed 2.00 ct weight, the bezel traces the clipped upper corners, long tapered sides and narrow lower edge of the diamond.
The rest of the ring stays deliberately plain. Cathedral supports rise from shoulders measuring approximately 2.30 mm, meeting the bezel without adding side stones or decorative metalwork. The lower shank is about 2.20 mm wide and 1.85 mm thick, while the reference setting reaches approximately 6.30 mm high.
Design highlights
- Coffin cut center options: 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct or 4.5 ct
- 2.00 ct reference center measuring approximately 10.5 × 6.5 mm
- Full geometric bezel surrounding the entire diamond perimeter
- No accent diamonds or pavé along the shank
- Cathedral-supported shoulders measuring approximately 2.30 mm
- Approx. 6.30 mm reference setting height with a 2.20 mm lower band
The bezel makes the unusual outline impossible to miss. Its polished border repeats every change of direction in the coffin cut, while the undecorated shank leaves nothing beside the center to compete with that geometry. Explore more engagement rings, compare unusual cuts in the diamond stone guide, or review the available choices in the metal guide.
Diamond & Ring Details
| Specification | Details |
|---|---|
| Center stone | Coffin · 10.5 × 6.5 mm · approx. 2.00 ct in the photographed design |
| Accent stones | None |
| Total weight / count | approx. 2.00 ct · 1 stone in the photographed design |
| Setting | Bezel |
| Band | Plain polished shank with cathedral support |
| Band details | Approx. 2.20 mm lower width · 1.85 mm lower thickness · 2.30 mm shoulder width |
| Setting height | Approx. 6.30 mm at the 2.00 ct reference weight |
| Center options | 1 ct, 1.5 ct, 2 ct, 2.5 ct, 3 ct, 3.5 ct, 4 ct, 4.5 ct |
| Finish | High Polish |
Measurements are approximate. The selected center weight determines the final diamond dimensions, bezel proportions and total diamond weight.
About Lab Grown Diamonds
The coffin cut reference center measures approximately 10.5 × 6.5 mm at 2.00 ct. Its clipped upper corners, long angled sides and narrower base create a distinctly geometric outline. The full bezel follows those edges closely instead of placing prongs over them.
Metal, Care & Fit
The reference construction uses approximately 5.40 g of 18K gold before the diamond is set. Yellow and rose gold create a strong border around the white center, while white gold and platinum make the bezel visually recede toward the diamond. Clean around the underside of the setting with warm water, mild soap and a soft brush.
FAQ
How does the full bezel protect this coffin cut?
The bezel surrounds the complete perimeter of the diamond with metal. That gives the angular 10.5 × 6.5 mm reference center a continuous protective edge instead of leaving corners between exposed prongs.
Does this ring have any side or accent diamonds?
No. The photographed design contains one 2.00 ct center diamond and no accent stones, leaving the polished bezel and plain shank completely free of pavé.
How high does the 2 ct reference setting sit?
The photographed construction is approximately 6.30 mm high. Cathedral supports rise from the shoulders into the bezel, keeping the center connected to the shank from both sides.
How wide is the band?
The lower shank measures approximately 2.20 mm wide and 1.85 mm thick, with shoulders of approximately 2.30 mm near the setting. The nearly consistent width keeps attention on the geometric center.
Which metal gives the coffin outline the strongest contrast?
Yellow and rose gold create the clearest visible border around the white diamond. White gold and platinum keep the bezel closer in tone to the center while preserving the same angular outline.
Common questions
Ring questions, answered
Timing, shipping, certification and return eligibility for made-to-order rings.
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Answers last updated August 2, 2026
When will my order ship?
Standard listed pieces are made to order with an estimated dispatch of 7 business days. Use the product-page estimate when it is more specific and the timing confirmed after ordering. Delivery timing begins after dispatch and varies by destination and carrier service. Fully custom commissions follow the production schedule confirmed with their approved specifications or CAD.
When is insured worldwide delivery free?
Orders of US$500 or more receive free express, insured and tracked worldwide delivery. Below US$500, express, insured and tracked worldwide delivery is charged at the fixed rate shown at checkout.
Will I have to pay import duties?
For every destination available at checkout, Signora prepays applicable import duties and import taxes. Customers should not be asked to pay those import charges again on delivery.
What certificate comes with my jewelry?
Every finished piece includes a Signora Jewelry Certificate. Each selected individual lab-grown center or primary diamond of 0.50 ct or above includes an IGI grading report. Below 0.50 ct, IGI can be arranged by custom request. Custom moissanite and gemstone selections include GRA documentation, with the exact scope confirmed in the approved specifications. The product page or approved specifications state the exact laboratory, report type and scope.
Can I return a made-to-order listed design?
Standard listed products are eligible for return within 30 days after carrier-recorded delivery when unworn, unused and in their original condition, with the original packaging and included documents. Normal listed choices such as metal, stone carat, chain or bracelet length, an extended ring size, or complimentary engraving do not by themselves make an item Final Sale. A sale or discount also does not imply Final Sale; only an item explicitly classified as Final Sale follows the non-returnable exclusion.
How are fully custom orders handled?
A fully custom commission is different from a listed made-to-order design. After its specifications or CAD are approved, a normal change-of-mind return does not apply. Manufacturing defects remain reviewable. Signora may accept an exceptional non-defect return case by case; documented labor and genuinely non-recoverable costs may be deducted, but these deductions are not a restocking fee.